27 research outputs found

    Epidemiological And Molecular Mechanisms Aspects Linking Obesity And Cancer [mecanismos Epidemiológicos E Moleculares Que Associam Obesidade E Câncer]

    Get PDF
    About 25% of cancer cases globally are due to excess weight and a sedentary lifestyle. These results are alarming, as the world knows a pandemy of obesity and, in consequence, insulin resistance. Obesity may increase risk for various cancers by several mechanisms, including increasing sex and metabolic hormones, and inflammation. Here, we present a review of epidemiological and molecular evidences linking obesity and cancer - particularly colorectal, post-menopausal breast, endometrial, pancreatic, high grade prostate, hepatocellular, gallbladder, kidney and esophageal adenocarcinoma. The expected striking increase in the incidence of cancer in the near future related to obesity turns the knowledge of this field of great impact as it is needed to the development of strategies to prevent and treat this disease.532213226Filozof, C., Gonzalez, C., Sereday, M., Mazza, C., Braguinsky, J., Obesity prevalence and trends in Latin-American countries (2001) Obes Rev, 2 (2), pp. 99-106Carvalheira, J.B., Saad, M.J., (2006) Arq Bras Endocrinol Metabol, 50 (2), pp. 360-367. , Insulin resistance/hyperinsulinemia associated diseases not included in the metabolic syndrome, Epub 2006 May 23, Review, Portugueseden, C.L., Carroll, M.D., Curtin, L.R., McDowell, M.A., Tabak, C.J., Flegal, K.M., Prevalence of overweight and obesity in the United States, 1999-2004 (2006) JAMA, 295 (13), pp. 1549-1555(2002) Weight Control and Physical Activity, , IARC - International Agency for Research on Cancer Working Group on the Evaluation of Cancer-Preventive Strategies, Lyon, France: IARC Press(2007) Food, Nutrition, Physical Activity, and the Prevention of Cancer: A Global Perspective, , WCRF - World Cancer Reserach Fund, Washington: American Institute for Cancer ResearchReeves, G.K., Pirie, K., Beral, V., Green, J., Spencer, E., Bull, D., Cancer incidence and mortality in relation to body mass index in the Million Women Study: Cohort study (2007) BMJ, 335 (7634), p. 1134. , Epub 2007 Nov 6Renehan, A.G., Tyson, M., Egger, M., Heller, R.F., Zwahlen, M., Body mass index and incidence of cancer: A systematic review and meta-analysis of prospective observational studies (2008) Lancet, 371 (9612), pp. 569-578. , ReviewRenehan, A.G., Roberts, D.L., Dive, C., Obesity and cancer: Pathophysiological and biological mechanisms (2008) Arch Physiol Biochem, 114 (1), pp. 71-83. , ReviewCalle, E.E., Rodriguez, C., Walker-Thurmond, K., Thun, M.J., Overweight, obesity, and mortality from cancer in a prospectively studied cohort of U.S. adults (2003) N Engl J Med, 348 (17), pp. 1625-1638Yakar, S., Nunez, N.P., Pennisi, P., Brodt, P., Sun, H., Fallavollita, L., Increased tumor growth in mice with diet-induced obesity: Impact of ovarian hormones (2006) Endocrinology, 147 (12), pp. 5826-5834. , Epub 2006 Sep 7Dirx, M.J., Zeegers, M.P., Dagnelie, P.C., van den Bogaard, T., van den Brandt, P.A., Energy restriction and the risk of spontaneous mammary tumors in mice: A meta-analysis (2003) Int J Cancer, 106 (5), pp. 766-770Chow, W.H., Gridley, G., Fraumeni Jr., J.F., Järvholm, B., Obesity, hypertension, and the risk of kidney cancer in men (2000) N Engl J Med, 343 (18), pp. 1305-1311Larsson, S.C., Orsini, N., Wolk, A., Body mass index and pancreatic cancer risk: A meta-analysis of prospective studies (2007) Int J Cancer, 120 (9), pp. 1993-1998Pischon, T., Lahmann, P.H., Boeing, H., Friedenreich, C., Norat, T., Tjønneland, A., Body size and risk of colon and rectal cancer in the European Prospective Investigation Into Cancer and Nutrition (EPIC) (2006) J Natl Cancer Inst, 98 (13), pp. 920-931Jenab, M., Riboli, E., Cleveland, R.J., Norat, T., Rinaldi, S., Nieters, A., Serum C-peptide, IGFBP-1 and IGFBP-2 and risk of colon and rectal cancers in the European Prospective Investigation into Cancer and Nutrition (2007) Int J Cancer, 121 (2), pp. 368-376Sandhu, M.S., Dunger, D.B., Giovannucci, E.L., Insulin, insulin-like growth factor-I (IGF-I), IGF binding proteins, their biologic interactions, and colorectal cancer (2002) J Natl Cancer Inst, 94 (136), pp. 972-980Renehan, A.G., Zwahlen, M., Minder, C., O'Dwyer, S.T., Shalet, S.M., Egger, M., Insulin-like growth factor (IGF)-I, IGF binding protein-3, and cancer risk: Systematic review and meta-regression analysis (2004) Lancet, 363 (9418), pp. 1346-1353Ma, J., Pollak, M.N., Giovannucci, E., Chan, J.M., Tao, Y., Hennekens, C.H., Prospective study of colorectal cancer risk in men and plasma levels of insulin-like growth factor (IGF)-I and IGF-binding protein-3 (1999) J Natl Cancer Inst, 91 (7), pp. 620-625Wolpin, B.M., Meyerhardt, J.A., Chan, A.T., Ng, K., Chan, J.A., Wu, K., Insulin, the insulin-like growth factor axis, and mortality in patients with nonmetastatic colorectal cancer (2009) J Clin Oncol, 27 (2), pp. 176-185. , Epub 2008 Dec 8Aaronson, S.A., Growth factors and cancer (1991) Science, 254 (5035), pp. 1146-1153. , ReviewKaaks, R., Lukanova, A., Energy balance and cancer: The role of insulin and insulin-like growth factor-I (2001) Proc Nutr Soc, 60 (1), pp. 91-106. , ReviewStattin, P., Lukanova, A., Biessy, C., Söderberg, S., Palmqvist, R., Kaaks, R., Obesity and colon cancer: Does leptin provide a link? (2004) Int J Cancer, 109 (1), pp. 149-152Carvalheira, J.B., Siloto, R.M., Ignacchitti, I., Brenelli, S.L., Carvalho, C.R., Leite, A., Insulin modulates leptin-induced STAT3 activation in rat hypothalamus (2001) FEBS Lett, 500 (3), pp. 119-124Björntorp, P., Obesity (1997) Lancet, 350 (9075), pp. 423-426Giovannucci, E., Colditz, G.A., Stampfer, M.J., Willett, W.C., Physical activity, obesity, and risk of colorectal adenoma in women (United States) (1996) Cancer Causes Control, 7 (2), pp. 253-263Stattin, P., Palmqvist, R., Söderberg, S., Biessy, C., Ardnor, B., Hallmans, G., Plasma leptin and colorectal cancer risk: A prospective study in Northern Sweden (2003) Oncol Rep, 10 (6), pp. 2015-2021Wei, E.K., Giovannucci, E., Fuchs, C.S., Willett, W.C., Mantzoros, C.S., Low plasma adiponectin levels and risk of colorectal cancer in men: A prospective study (2005) J Natl Cancer Inst, 97 (22), pp. 1688-1694Lukanova, A., Söderberg, S., Kaaks, R., Jellum, E., Stattin, P., Serum adiponectin is not associated with risk of colorectal cancer (2006) Cancer Epidemiol Biomarkers Prev, 15, pp. 401-402Huang, Z., Hankinson, S.E., Colditz, G.A., Stampfer, M.J., Hunter, D.J., Manson, J.E., Dual effects of weight and weight gain on breast cancer risk (1997) JAMA, 278 (17), pp. 1407-1411Travis, R.C., Key, T.J., Oestrogen exposure and breast cancer risk (2003) Breast Cancer Res, 5 (5), pp. 239-247Schairer, C., Hill, D., Sturgeon, S.R., Fears, T., Pollak, M., Mies, C., Serum concentrations of IGF-I, IGFBP-3 and c-peptide and risk of hyperplasia and cancer of the breast in postmenopausal women (2004) Int J Cancer, 108 (5), pp. 773-779Toniolo, P., Bruning, P.F., Akhmedkhanov, A., Bonfrer, J.M., Koenig, K.L., Lukanova, A., Serum insulin-like growth factor-I and breast cancer (2000) Int J Cancer, 88 (5), pp. 828-832Yang, G., Lu, G., Jin, F., Dai, Q., Best, R., Shu, X.O., Population-based, case-control study of blood C-peptide level and breast cancer risk (2001) Cancer Epidemiol Biomarkers Prev, 10 (11), pp. 1207-1211Hirose, K., Toyama, T., Iwata, H., Takezaki, T., Hamajima, N., Tajima, K., Insulin, insulin-like growth factor-I and breast cancer risk in Japanese women (2003) Asian Pac J Cancer Prev, 4 (3), pp. 239-246Hankinson, S.E., Willett, W.C., Colditz, G.A., Hunter, D.J., Michaud, D.S., Deroo, B., Circulating concentrations of insulin-like growth factor-I and risk of breast cancer (1998) Lancet, 351 (9113), pp. 1393-1396Goodwin, P.J., Ennis, M., Pritchard, K.I., Trudeau, M.E., Koo, J., Hartwick, W., Insulin-like growth factor binding proteins 1 and 3 and breast cancer outcomes (2002) Breast Cancer Res Treat, 74 (1), pp. 65-76Vona-Davis, L., Rose, D.P., Adipokines as endocrine, paracrine, and autocrine factors in breast cancer risk and progression (2007) Endocr Relat Cancer, 14 (2), pp. 189-206Miyoshi, Y., Funahashi, T., Kihara, S., Taguchi, T., Tamaki, Y., Matsuzawa, Y., Association of serum adiponectin levels with breast cancer risk (2003) Clin Cancer Res, 9 (15), pp. 5699-5704Mantzoros, C., Petridou, E., Dessypris, N., Chavelas, C., Dalamaga, M., Alexe, D.M., Adiponectin and breast cancer risk (2004) J Clin Endocrinol Metab, 89 (3), pp. 1102-1107Kaaks, R., Lukanova, A., Kurzer, M.S., Obesity, endogenous hormones, and endometrial cancer risk: A synthetic review (2002) Cancer Epidemiol Biomarkers Prev, 11 (12), pp. 1531-1543. , ReviewLukanova, A., Lundin, E., Micheli, A., Arslan, A., Ferrari, P., Rinaldi, S., Circulating levels of sex steroid hormones and risk of endometrial cancer in postmenopausal women (2004) Int J Cancer, 108 (3), pp. 425-432Lukanova, A., Zeleniuch-Jacquotte, A., Lundin, E., Micheli, A., Arslan, A.A., Rinaldi, S., Prediagnostic levels of C-peptide, IGF-I, IGFBP -1, -2 and -3 and risk of endometrial cancer (2004) Int J Cancer, 108 (2), pp. 262-268Nicodemus, K.K., Sweeney, C., Folsom, A.R., Evaluation of dietary, medical and lifestyle risk factors for incident kidney cancer in postmenopausal women (2004) Int J Cancer, 108 (1), pp. 115-121Bergstrom, A., Hsieh, C.C., Lindblad, P., Lu, C.M., Cook, N.R., Wolk, A., Obesity and renal cell cancer-a quantitative review (2001) Br J Cancer, 85 (7), pp. 984-990Pischon, T., Lahmann, P.H., Boeing, H., Tjonneland, A., Halkjaer, J., Overvad, K., Body size and risk of renal cell carcinoma in the European Prospective Investigation into Cancer and Nutrition (EPIC) (2006) Int J Cancer, 118 (3), pp. 728-738Lindblad, P., Chow, W.H., Chan, J., Bergström, A., Wolk, A., Gridley, G., The role of diabetes mellitus in the aetiology of renal cell cancer (1999) Diabetologia, 42 (1), pp. 107-112Spyridopoulos, T.N., Petridou, E.T., Skalkidou, A., Dessypris, N., Chrousos, G.P., Mantzoros, C.S., Low adiponectin levels are associated with renal cell carcinoma: A case-control study (2007) Int J Cancer, 120 (7), pp. 1573-1578Pera, M., Manterola, C., Vidal, O., Grande, L., Epidemiology of esophageal adenocarcinoma (2005) J Surg Oncol, 92 (3), pp. 151-159Kubo, A., Corley, D.A., Body mass index and adenocarcinomas of the esophagus or gastric cardia: A systematic review and metaanalysis (2006) Cancer Epidemiol Biomarkers Prev, 15 (5), pp. 872-878Abnet, C.C., Freedman, N.D., Hollenbeck, A.R., Fraumeni Jr., J.F., Leitzmann, M., Schatzkin, A., A prospective study of BMI and risk of oesophageal and gastric adenocarcinoma (2008) Eur J Cancer, 44 (3), pp. 465-471Corley, D.A., Kubo, A., Zhao, W., Abdominal obesity and the risk of esophageal and gastric cardia carcinomas (2008) Cancer Epidemiol Biomarkers Prev, 17 (2), pp. 352-358Hampel, H., Abraham, N.S., El-Serag, H.B., Meta-analysis: Obesity and the risk for gastroesophageal reflux disease and its complications (2005) Ann Intern Med, 143 (3), pp. 199-211Giovannucci, E., Michaud, D., The role of obesity and related metabolic disturbances in cancers of the colon, prostate, and pancreas (2007) Gastroenterology, 132 (6), pp. 2208-2225Samanic, C., Gridley, G., Chow, W.H., Lubin, J., Hoover, R.N., Fraumeni Jr., J.F., Obesity and cancer risk among white and black United States veterans (2004) Cancer Causes Control, 15 (1), pp. 35-43Luo, J., Margolis, K.L., Adami, H.O., laCroix, A., Ye, W., Obesity and risk of pancreatic cancer among postmenopausal women: The Women's Health Initiative (United States) (2008) Br J Cancer, 99 (3), pp. 527-531. , Epub 2008 Jul 15Gapstur, S.M., Gann, P.H., Lowe, W., Liu, K., Colangelo, L., Dyer, A., Abnormal glucose metabolism and pancreatic cancer mortality (2000) JAMA, 283 (19), pp. 2552-2558Wolpin, B.M., Michaud, D.S., Giovannucci, E.L., Schernhammer, E.S., Stampfer, M.J., Manson, J.E., Circulating insulin-like growth factor axis and the risk of pancreatic cancer in four prospective cohort (2007) Br J Cancer, 97 (1), pp. 98-104. , Epub 2007 May 29MacInnis, R.J., English, D.R., Body size and composition and prostate cancer risk: Systematic review and meta-regression analysis (2006) Cancer Causes Control, 17 (8), pp. 989-1003Potischman, N., Swanson, C.A., Siiteri, P., Hoover, R.N., Reversal of relation between body mass and endogenous estrogen concentrations with menopausal status (1996) J Natl Cancer Inst, 88 (11), pp. 756-758Chan, J.M., Stampfer, M.J., Giovannucci, E., Gann, P.H., Ma, J., Wilkinson, P., Plasma insulin-like growth factor-I and prostate cancer risk: A prospective study (1998) Science, 279 (5350), pp. 563-566Larsson, S.C., Wolk, A., Obesity and the risk of gallbladder cancer: A meta-analysis (2007) Br J Cancer, 96 (9), pp. 1457-1461Caldwell, S.H., Crespo, D.M., Kang, H.S., Al-Osaimi, A.M., Obesity and hepatocellular carcinoma (2004) Gastroenterology, 127 (5 SUPPL. 1), pp. S97-S103. , ReviewPan, S.Y., Johnson, K.C., Ugnat, A.M., Wen, S.W., Mao, Y., Association of obesity and cancer risk in Canada (2004) Am J Epidemiol, 159 (3), pp. 259-268Lahmann, P.H., Hoffmann, K., Allen, N., van Gils, C.H., Khaw, K.T., Tehard, B., Body size and breast cancer risk: Findings from the European Prospective Investigation into Cancer and Nutrition (EPIC) (2004) Int J Cancer, 111 (5), pp. 762-771Olsen, C.M., Green, A.C., Whiteman, D.C., Sadeghi, S., Obesity and the risk of epithelial ovarian cancer: A systematic review and meta-analysis (2007) Eur J Cancer, 43 (4), pp. 690-709. , Epub 2007 Jan 12Olsen, C.M., Nagle, C.M., Whiteman, D.C., Purdie, D.M., Green, A.C., Webb, P.M., Body size and risk of epithelial ovarian and related cancers: A population-based case-control study (2008) Int J Cancer, 123 (2), pp. 450-456Engeland, A., Tretli, S., Hansen, S., Bjørge, T., Height and body mass index and risk of lymphohematopoietic malignancies in two million Norwegian men and women (2007) Am J Epidemiol, 165 (1), pp. 44-52. , Epub 2006 Oct 13Larsson, S.C., Wolk, A., Body mass index and risk of multiple myeloma: A meta-analysis (2007) Int J Cancer, 121 (11), pp. 2512-2516Druker, B.J., Imatinib as a paradigm of targeted therapies (2004) Adv Cancer Res, 91, pp. 1-30McKeown-Eyssen, G., Epidemiology of colorectal cancer revisited: Are serum triglycerides and/or plasma glucose associated with risk? (1994) Cancer Epidemiol Biomarkers Prev, 3 (8), pp. 687-695Giovannucci, E., Insulin and colon cancer (1995) Cancer Causes Control, 6 (2), pp. 164-179. , ReviewGiovannucci, E., Nutrition, insulin, insulin-like growth factors and cancer (2003) Horm Metab Res, 35 (11-12), pp. 694-704Calle, E.E., Kaaks, R., Overweight, obesity and cancer: Epidemiological evidence and proposed mechanisms (2004) Nat Rev Cancer, 4 (8), pp. 579-591Allen, N.E., Appleby, P.N., Kaaks, R., Rinaldi, S., Davey, G.K., Key, T.J., Lifestyle determinants of serum insulin-like growth-factor-I (IGF-I), C-peptide and hormone binding protein levels in British women (2003) Cancer Causes Control, 14 (1), pp. 65-74Holmes, M.D., Pollak, M.N., Hankinson, S.E., Lifestyle correlates of plasma insulin-like growth factor I and insulin-like growth factor binding protein 3 concentrations (2002) Cancer Epidemiol Biomarkers Prev, 11 (9), pp. 862-867Myal, Y., Shiu, R.P., Bhaumick, B., Bala, M., Receptor binding and growth-promoting activity of insulin-like growth factors in human breast cancer cells (T-47D) in culture (1984) Cancer Res, 44 (12 PART. 1), pp. 5486-5490Wu, Y., Cui, K., Miyoshi, K., Hennighausen, L., Green, J.E., Setser, J., Reduced circulating insulin-like growth factor I levels delay the onset of chemically and genetically induced mammary tumors (2003) Cancer Res, 63 (15), pp. 4384-4388Pollak, M., Blouin, M.J., Zhang, J.C., Kopchick, J.J., Reduced mammary gland carcinogenesis in transgenic mice expressing a growth hormone antagonist (2001) Br J Cancer, 85 (3), pp. 428-430Creighton, C.J., Casa, A., Lazard, Z., Huang, S., Tsimelzon, A., Hilsenbeck, S.G., Insulin-like growth factor-I activates gene transcription programs strongly associated with poor breast cancer prognosis (2008) J Clin Oncol, 26, pp. 4078-4085Carvalheira, J.B., Zecchin, H.G., Saad, M.J., (2002) Arq Bras Endocrinol Metabol, 46 (4), pp. 419-425. , Vias de sinalização da insulinaMoore, T., Beltran, L., Carbajal, S., Strom, S., Traag, J., Hursting, S.D., Dietary energy balance modulates signaling through the akt/mammalian target of rapamycin pathways in multiple epithelial tissues (2008) Cancer Prev Res, 1 (1), pp. 65-76. , Epub 2008 Mar 31Cantley, L.C., The phosphoinositide 3-kinase pathway (2002) Science, 296 (5573), pp. 1655-1657Inoki, K., li, Y., Zhu, T., Wu, J., Guan, K.L., TSC2 is phosphorylated and inhibited by Akt and suppresses mTOR signalling (2002) Nat Cell Biol, 4 (9), pp. 648-657Garami, A., Zwartkruis, F.J., Nobukuni, T., Joaquin, M., Roccio, M., Stocker, H., Insulin activation of Rheb, a mediator of mTOR/S6K/4E-BP signaling, is inhibited by TSC1 and 2 (2003) Mol Cell, 11 (6), pp. 1457-1466Hay, N., Sonenberg, N., Upstream and downstream of mTOR (2004) Genes Dev, 18 (16), pp. 1926-1945McManus, E.J., Alessi, D.R., TSC1-TSC2: A complex tale of PKB-mediated S6K regulation (2002) Nat Cell Biol, 4 (9), pp. E214-E216Roux, P.P., Ballif, B.A., Anjum, R., Gygi, S.P., Blenis, J., Tumor-promoting phorbol esters and activated Ras inactivate the tuberous sclerosis tumor suppressor complex via p90 ribosomal S6 kinase (2004) Proc Natl Acad Sci U S A, 101 (37), pp. 13489-13494. , Epub 2004 Sep 1Inoki, K., Zhu, T., Guan, K.L., TSC2 mediates cellular energy response to control cell growth and survival (2003) Cell, 115 (5), pp. 577-590Harrington, L.S., Findlay, G.M., Lamb, R.F., Restraining PI3K: MTOR signalling goes back to the membrane (2005) Trends Biochem Sci, 30 (1), pp. 35-42Fantl, W.J., Muslin, A.J., Kikuchi, A., Martin, J.A., MacNicol, A.M., Gross, R.W., Activation of Raf-1 by 14-3-3 proteins (1994) Nature, 371 (6498), pp. 612-614Blagosklonny, M.V., Hsp-90-associated oncoproteins: Multiple targets of geldanamycin and its analogs (2002) Leukemia, 16 (4), pp. 455-462Kyriakis, J.M., App, H., Zhang, X.F., Banerjee, P., Brautigan, D.L., Rapp, U.R., Raf-1 activated MAP kinase kinase (1992) Nature, 358 (6385), pp. 417-421Yoon, S., Seger, R., The extracellular signal-regulated kinase: Multiple substrates regulate diverse cellular functions (2006) Growth Factors, 24 (1), pp. 21-44Murphy, L.O., Blenis, J., MAPK signal specificity: The right place at the right time (2006) Trends Biochem Sci, 31 (5), pp. 268-275. , Epub 2006 Apr 17Key, T.J., Appleby, P.N., Reeves, G.K., Roddam, A., Dorgan, J.F., Longcope, C., Body mass index, serum sex hormones, and breast cancer risk in postmenopausal women (2003) J Natl Cancer Inst, 95 (16), pp. 1218-1226Pugeat, M., Crave, J.C., Elmidani, M., Nicolas, M.H., Garoscio-Cholet, M., Lejeune, H., Pathophysiology of sex hormone binding globulin (SHBG): Relation to insulin (1991) J Steroid Biochem Mol Biol, 40 (4-6), pp. 841-849McTiernan, A., Rajan, K.B., Tworoger, S.S., Irwin, M., Bernstein, L., Baumgartner, R., Adiposity and sex hormones in postmenopausal breast cancer survivors (2003) J Clin Oncol, 21 (10), pp. 1961-1966Fortunati, N., Fissore, F., Fazzari, A., Piovano, F., Catalano, M.G., Becchis, M., Estradiol induction of cAMP in breast cancer cells is mediated by foetal calf serum (FCS) and sex hormone-binding globulin (SHBG) (1999) J Steroid Biochem Mol Biol, 70 (1-3), pp. 73-80Fortunati, N., Fissore, F., Fazzari, A., Becchis, M., Comba, A., Catalano, M.G., Sex steroid binding protein exerts a negative control on estradiol action in MCF-7 cells (human breast cancer) through cyclic adenosine 3′,5′-monophosphate and protein kinase A (1996) Endocrinology, 137 (2), pp. 686-692Catalano, M.G., Frairia, R., Boccuzzi, G., Fortunati, N., Sex hormone-binding globulin antagonizes the anti-apoptotic effect of estradiol in breast cancer cells (2005) Mol Cell Endocrinol, 230 (1-2), pp. 31-37Lee, A.V., Jackson, J.G., Gooch, J.L., Hilsenbeck, S.G., Coronado-Heinsohn, E., Osborne, C.K., Enhancement of insulin-like growth factor signaling in human breast cancer: Estrogen regulation of insulin receptor substrate-1 expression in vitro and in vivo (1999) Mol Endocrinol, 13 (5), pp. 787-796Dunaif, A., Insulin resistance and the polycystic ovary syndrome: Mechanism and implications for pathogenesis (1997) Endocr Rev, 18 (6), pp. 774-800Ehrmann, D.A., Barnes, R.B., Rosenfield, R.L., Polycystic ovary syndrome as a form of functional ovarian hyperandrogenism due to dysregulation of androgen secretion (1995) Endocr Rev, 16 (3), pp. 322-353. , ReviewDruckmann, R., Rohr, U.D., IGF-1 in gynaecology and obstetrics: Update 2002 (2002) Maturitas, 41 (SUPPL. 1), pp. S65-S83Colangelo, L.A., Gapstur, S.M., Gann, P.H., Dyer, A.R., Liu, K., Colorectal cancer mortality and factors related to the insulin resistance syndrome (2002) Cancer Epidemiol Biomarkers Prev, 11 (4), pp. 385-391Schiff, R., Massarweh, S.A., Shou, J., Bharwani, L., Mohsin, S.K., Osborne, C.K., Cross-talk between estrogen receptor and growth factor pathways as a molecular target for overcoming endocrine resistance (2004) Clin Cancer Res, 10 (1 PART. 2), pp. S331-S336Balkwill, F., Mantovani, A., Inflammation and cancer: Back to Virchow? (2001) Lancet, 357 (9255), pp. 539-545Roder, D.M., The epidemiology of gastric cancer (2002) Gastric Cancer, 5 (SUPPL. 1), pp. 5-11Ekbom, A., Risk of cancer in ulcerative colitis (1998) J Gastrointest Surg, 2 (4), pp. 312-313. , ReviewDhala, A., Pinsker, K., Prezant, D.J., Respiratory health consequences of environmental tobacco smoke (2004) Med Clin North Am, 88 (6), pp. 1535-1552+xiHotamisligil, G.S., Shargill, N.S., Spiegelman, B.M., Adipose expression of tumor necrosis factor-alpha: Direct role in obesity-linked insulin resistance (1993) Science, 259 (5091), pp. 87-91Tsukumo, D.M., Carvalho-Filho, M.A., Carvalheira, J.B., Prada, P.O., Hirabara, S.M., Schenka, A.A., Loss-of-f

    Soccer and homosexuality: the conflicts that lie within the affective game of the coach-adolescent athlete relationship

    Get PDF
    Discussions regarding homosexuality within a sports context are mediated by emotional nuances, especially in the world of soccer, where practitioners are required to have attributes such as strength, masculinity and aggressiveness. As a consequence, this work aimed to analyze the symbolic representation of homosexual relationships between adolescent soccer players and their coaches; and, furthermore, to understand the intention behind homoerotic relationships that are established between members of the management team and its players. In this study, researchers used the life history methodology, with participation from three adolescent athletes, ages 14, 15 and 16, and three former athletes, ages 26, 28 and 45, who we called speakers. Based on the collection and analysis of research participants’ testimonies, homosexual relations were found to have occurred between athletes and coaches, or between athletes and other members of the management team, as a part of a “social contract” that is exclusively linked to their professional objectives. These relationships appear to be purely objective; authentic affective links are absent, due apparently to the transient nature of the athletes in these groups. Too, this context is usually marked by the athlete’s physical and emotional vulnerability, and the agreements he makes within this context are accompanied with moral dilemmas, because such adolescents idealize the coach as a paternal archetype.“Futebol e homossexualidade: Os conflitos que se encontram dentro do jogo afetivo da relação treinador-atleta adolescente.” As discussões a respeito da homossexualidade no contexto esportivo são mediadas por nuanças emocionais, especialmente no mundo do futebol que exige de seus praticantes atributos de força, virilidade e agressividade. Por este motivo este trabalho teve como objetivos diagnosticar existência de relações homossexuais entre atletas adolescentes da modalidade de futebol e seus técnicos e sua representação simbólica e ainda, compreender a intencionalidade das relações homoafetivas que se estabelecem entre componentes da equipe diretiva e os jogadores. Esta pesquisa é de natureza qualitativa e a técnica adotada foi a “história de vida” e a participação de três atletas adolescentes em atividade, com idade de 14, 15 e 16 anos e três ex-atletas profissionais, com idades 26, 28 e 45 anos serviram de base metodológica. A partir da análise e tratamento dos depoimentos verificou-se que ocorreram relações homossexuais nas categorias de base envolvendo técnico e atleta, ou com outros membros da equipe diretiva, como parte dos contratos sociais, ligados exclusivamente a objetivos profissionais. Estas relações parecem ser puramente objetais, não parecendo existir vínculos afetivos duradouros, aparentemente, devido à natureza transitória de atletas nesses grupos. Também, nesses ambientes, muitas vezes marcados pela vulnerabilidade física e emocional dos atletas, os acertos para as relações homossexuais são permeadas por dilemas morais, tendo em vista que os atletas adolescentes idealizam o treinador como o arquétipo paterno ideal.“El fútbol y la homosexualidad: Los conflictos que se encuentran dentro del juego afectivo de la relación atleta-entrenador de los adolescentes.” Las discusiones sobre la homosexualidad en contexto deportivo están mediadas por matices emocionales, sobre todo en el mundo del fútbol que exige a sus jugadores atributos como la fuerza, la virilidad y los jugadores. En este estudio, los investigadores utilizaron la metodología de la historia de vida, con la participación de tres atletas adolescentes, con 14, 15 y 16 años, y tres ex atletas con 26, 28 y 45 años, que llamamos ‘oradores’. Basado en la recogida y análisis de testimonios de participantes en la investigación, se encontró que las relaciones homosexuales que se han producido entre los atletas y entrenadores, o entre atletas y otros miembros del equipo de gestión, son como parte de un “contrato social” que está vinculado exclusivamente a sus objetivos profesionales. Estas relaciones parecen ser solamente como un objeto; porque a veces no hay vínculos afectivos auténticos, debido aparentemente a la naturaleza transitoria de los atletas en estos grupos. Demasiado, este contexto es generalmente marcado por la vulnerabilidad física y emocional del deportista, y los acuerdos que hace dentro de este contexto se acompañan con dilemas morales, debido a que tales adolescentes idealizan el entrenador como un arquetipo paterno. la agresividad. Por lo tanto, este estudio tuvo como objetivo diagnosticar la existencia de relaciones homosexuales entre adolescentes atletas de fútbol y sus entrenadores y la representación simbólica de estas relaciones. También comprender la intencionalidad de las relaciones homoafetivas que se intercambian entre algunos componentes del equipo directivo y(undefined

    Risk profiles and one-year outcomes of patients with newly diagnosed atrial fibrillation in India: Insights from the GARFIELD-AF Registry.

    Get PDF
    BACKGROUND: The Global Anticoagulant Registry in the FIELD-Atrial Fibrillation (GARFIELD-AF) is an ongoing prospective noninterventional registry, which is providing important information on the baseline characteristics, treatment patterns, and 1-year outcomes in patients with newly diagnosed non-valvular atrial fibrillation (NVAF). This report describes data from Indian patients recruited in this registry. METHODS AND RESULTS: A total of 52,014 patients with newly diagnosed AF were enrolled globally; of these, 1388 patients were recruited from 26 sites within India (2012-2016). In India, the mean age was 65.8 years at diagnosis of NVAF. Hypertension was the most prevalent risk factor for AF, present in 68.5% of patients from India and in 76.3% of patients globally (P < 0.001). Diabetes and coronary artery disease (CAD) were prevalent in 36.2% and 28.1% of patients as compared with global prevalence of 22.2% and 21.6%, respectively (P < 0.001 for both). Antiplatelet therapy was the most common antithrombotic treatment in India. With increasing stroke risk, however, patients were more likely to receive oral anticoagulant therapy [mainly vitamin K antagonist (VKA)], but average international normalized ratio (INR) was lower among Indian patients [median INR value 1.6 (interquartile range {IQR}: 1.3-2.3) versus 2.3 (IQR 1.8-2.8) (P < 0.001)]. Compared with other countries, patients from India had markedly higher rates of all-cause mortality [7.68 per 100 person-years (95% confidence interval 6.32-9.35) vs 4.34 (4.16-4.53), P < 0.0001], while rates of stroke/systemic embolism and major bleeding were lower after 1 year of follow-up. CONCLUSION: Compared to previously published registries from India, the GARFIELD-AF registry describes clinical profiles and outcomes in Indian patients with AF of a different etiology. The registry data show that compared to the rest of the world, Indian AF patients are younger in age and have more diabetes and CAD. Patients with a higher stroke risk are more likely to receive anticoagulation therapy with VKA but are underdosed compared with the global average in the GARFIELD-AF. CLINICAL TRIAL REGISTRATION-URL: http://www.clinicaltrials.gov. Unique identifier: NCT01090362

    Efeitos ambientais e genéticos sobre escores visuais e ganho em peso ao sobreano de bovinos brangus

    No full text
    This research aimed at studying the effects of age of the cow at calving (IVP), age of the animal at yearling (IDS), the direct additive genetic (AD) and maternal (AM) effects and individual heterozygosity (HI) on visual scores of conformation (CS), early finishing (PS) and muscling (MS) at postweaning and average daily gain from weaning to yearling (GDS) of cattle used to originate the Brangus breed. There were analyzed records on 24 531, 21 166, 24 006 and 25 419 for CS, PS, MS and GDS, respectively, of animals born from 1986 to 2002 belonging to livestock files of Gensys Consultores Associados S/C Ltda. The analyses were performed by the least square method using mathematical models that included contemporary group as class varia- ble and IVP, IDS, AD, AM and HI as covariates. IVP showed linear and quadratic effects (p<0.01) on GDS and linear (p<0.01) on PS, while the quadratic effect of IDS was not significant for PS and GDS. AD and AM were significant (p<0.01) only for PS and MS scores, respectively. All the traits were significantly (p<0.01) influenced by HI. The environmental and genetic effects were important sources of variation for the studied traits and should be taken into account when comparison of animals and selection were performed.O objetivo do presente trabalho foi estudar os efeitos da idade da vaca ao parto (IVP) e idade do animal ao sobreano (IDS), bem como os efeitos genéticos aditivos diretos (AD) e maternos (AM) e da heterozigose individual (HI), sobre os escores visuais de conformação (CS), precocidade (PS) e musculatura (MS) ao sobreano e o ganho médio diário de peso da desmama ao sobreano (GDS) de animais formadores da raça Brangus. Foram analisados 24 531, 21 166, 24 006 e 25 419 dados de CS, PS, MS e GDS, respectivamente, de animais nascidos entre 1986 e 2002, provenientes do arquivo zootécnico da empresa Gensys Consul- tores Associados S/C Ltda. As análises foram realizadas pela metodologia de quadrados míni- mos utilizando modelos que incluíram os efeitos de grupo de contemporâneos como variável classificatória e IVP, IDS, AD, AM e HI como covariáveis. IVP apresentou efeitos linear e quadrático (p<0,01) sobre GDS e linear (p<0,01) para PS, enquanto que o efeito quadrático da IDS não foi significativo para PS e GDS. AD e AM foram significativos (p<0,01) somente para os escores PS e MS, respectivamente. Todas as caracterís- ticas avaliadas foram influenciadas significativa- mente (p<0,01) pelo efeito da heterozigose indivi- dual. Os efeitos ambientais e genéticos revelaram- se importantes fontes de variação para as carac- terísticas estudadas, devendo-se, pois, serem levados em consideração em tais casos, na distinção e comparação dos animais para fins de seleção

    Estimates of genetic parameters for visual scores and their correlation with production and reproductive traits in Brahman cattle

    No full text
    The objective of this study was to evaluate the association of visual scores of body structure, precocity and muscularity with production (body weight at 18 months and average daily gain) and reproductive (scrotal circumference) traits in Brahman cattle in order to determine the possible use of these scores as selection criteria to improve carcass quality. Covariance components were estimated by the restricted maximum likelihood method using an animal model that included contemporary group as fixed effect. A total of 1,116 observations of body structure, precocity and muscularity were used. Heritability was 0.39, 043 and 0.40 for body structure, precocity and muscularity, respectively. The genetic correlations were 0.79 between body structure and precocity, 0.87 between body structure and muscularity, and 0.91 between precocity and muscularity. The genetic correlations between visual scores and body weight at 18 months were positive (0.77, 0.57 and 0.59 for body structure, precocity and muscularity, respectively). Similar genetic correlations were observed between average daily gain and visual scores (0.60, 0.57 and 0.48, respectively), whereas the genetic correlations between scrotal circumference and these scores were low (0.13, 0.02, and 0.13). The results indicate that visual scores can be used as selection criteria in Brahman breeding programs. Favorable correlated responses should be seen in average daily gain and body weight at 18 months. However, no correlated response is expected for scrotal circumference

    Associação entre risco cardiovascular e hipertensão arterial em professores universitários Association between cardiovascular risk and hypertension in universities professors

    Get PDF
    A hipertensão arterial é uma das mais importantes causas modificáveis de morbi-mortalidade cardiovascular precoce na população adulta mundial, além de ser fator de risco independente para doenças cardiovasculares. Assim objetivou-se verificar a associação entre indicadores de risco cardiovascular e hipertensão arterial em professores universitários. Foram avaliados 145 professores da Universidade Federal de Viçosa (UFV), no ano de 2009, analisando-se as variáveis: sexo, idade, índice de massa corporal (IMC), relação cintura/quadril (RCQ), circunferência abdominal (CA), percentual de gordura (%G), colesterol total (CT), triacilglicerol (TG), glicose, pressão arterial sistólica (PAS) e diastólica (PAD) de repouso e consumo máximo de oxigênio (VO2máx). Utilizou-se o teste ANOVA one way para comparação entre indivíduos normotensos e pré-hipertensos e hipertensos. Calculou-se a razão de chances de desenvolvimento de quadros de PA elevada entre os indivíduos que apresentavam níveis indicativos de risco cardiovascular. Todos os tratamentos possuíram nível de significância de p < 0,05. Os homens apresentaram valores significativamente maiores para idade, peso, estatura, IMC, RCQ, CA, PAS e PAD. Já as mulheres possuíam um %G significativamente elevado. Os indivíduos com níveis pressóricos elevados apresentaram valores maiores para todas as variáveis, à exceção do VO2máx. Observou-se associação os fatores de risco e elevação da PA somente para as variáveis: sexo, idade, IMC, CA, %G e TG. Conclui-se que o gênero, a idade, o IMC, a circunferência abdominal, o percentual de gordura corporal e os triacilgliceróis foram considerados indicadores de risco cardiovascular por apresentarem associação com a hipertensão arterial na amostra de professores avaliados.<br>Hypertension is one of the most important modifiable causes of precocious cardiovascular morbid-mortality in the adult population worldwide, and it's an independent risk factor for cardiovascular disease. Thus we aimed to investigate the association between cardiovascular risk and blood pressure on universities professors. 145 professors from Universidade Federal de Viçosa (UFV) were evaluated, in 2009, analyzing the variables: gender, age, body mass index (BMI), waist / hip ratio (WHR), abdominal circumference (AC), percent body fat (% BF), total cholesterol (TC), triglyceride (TG), glucose, systolic blood pressure (SBP) and diastolic (DBP) at rest and maximal oxygen uptake (VO2max). We used ANOVA one way test for comparison between normotensive and prehypertensive and hypertensive individuals. It was calculated the odds ratio of high BP expansion among individuals who had indicative levels of cardiovascular risk. All treatments possessed a significance level of p < 0.05. Men showed significantly higher values for age, weight, height, BMI, WHR, AC, SBP and DBP. The women have had significantly higher % BF. Individuals with high blood pressure had higher values for all variables, except for VO2max. Association between risk factors and blood pressure increase was only observed to gender, age, BMI, % BF and BT. It is concluded that gender, age, BMI, abdominal circumference, percentage body fat and triglycerides were considered risk factors for cardiovascular disease associated with hypertension in the sample of professors evaluated
    corecore